qpdldecode(1)

📦
version 20200505dfsg0 · 11 versions
, in ubuntu noble, ubuntu questing

💖 qpdldecode — like, the manual, but make it make sense 💖

okay bestie, so this is qpdldecode(1) from the General Commands Manual and honestly? she's a whole mood. let's get into it 🌸

✨ NAME ✨

qpdldecode — takes a QPDL stream and decodes it into human readable form. that's it, that's the job. no cap 🫶

🌈 SYNOPSIS 🌈

qpdldecode [options] <qpdl-file

yes, she reads from stdin. feed her the stream, she gives you the tea ☕

🦋 DESCRIPTION 🦋

so qpdldecode decodes a QPDL stream into human readable form. periodt.

real talk though: only the JBIG compression format (0x13) is handled. anything else? not her problem, bestie 😭

and what even is a QPDL stream? it's the printer language used by these icons 👑:

  • the Samsung CLP-300
  • the Samsung CLP-600
  • the Samsung CLX-3160
  • and the Xerox Phaser 6110

printer lore fr fr 🖨️✨

💅 COMMAND LINE OPTIONS 💅

these are the options that can show up on the command line, iykyk:

  • -d basename — the basename of the .pbm file where the decompressed planes get saved. your lil souvenir folder 📁💖
  • -h — print hex file offsets. hex girlies rise 🧚
  • -o — print file offsets. (yes, the non-hex version, choose your fighter ⚔️)
  • -D level — set the Debug level. default is [0] 🐛

🎀 EXAMPLES 🎀

okay so imagine you've got a QPDL stream file that was created by foo2qpdl. decoding it looks like this, and she is verbose:

    0:    \033%-12345X@PJL DEFAULT SERVICEDATE=20070212
   2c:    @PJL SET USERNAME="Unknown"
   49:    @PJL SET JOBNAME="testpage.pdf"
   6a:    @PJL SET COLORMODE=COLOR
   84:    @PJL SET PAPERTYPE = NORMAL
   a1:    @PJL ENTER LANGUAGE = QPDL
   bd:    RECTYPE 0x0  len=17
               res=600, copies=1, papersize=letter(0), w=2550, h=3300
               papersource=auto, unk=0, duplex=0:0, unk=0,2,  unk=268(0x10c)
   ce:    RECTYPE 0xc  len=68(0x44)
               stripe=0, WB=1248(0x4e0), H=128(0x80), plane=4, comp=0x13,
               len=56(0x38)
               magic=0x39abcdef, len=20(0x14), unk=0,0,0,0,0,0,
               checksum=0x356
               DL = 0, D = 0, P = 1, - = 0, XY = 9984 x 6400
               L0 = 6400, MX = 0, MY = 0
               Order   = 0
               Options = 72  LRLTWO TPBON
               1 stripes, 0 layers, 1 planes
  112:    RECTYPE 0xc  len=68(0x44)
               stripe=0, WB=1248(0x4e0), H=128(0x80), plane=1, comp=0x13,
               len=56(0x38)
               magic=0x39abcdef, len=20(0x14), unk=0,0,0,0,0,0,
               checksum=0x356
               DL = 0, D = 0, P = 1, - = 0, XY = 9984 x 6400
               L0 = 6400, MX = 0, MY = 0
               Order   = 0
               Options = 72  LRLTWO TPBON
               1 stripes, 0 layers, 1 planes
  156:    RECTYPE 0xc  len=68(0x44)
               stripe=0, WB=1248(0x4e0), H=128(0x80), plane=2, comp=0x13,
               len=56(0x38)
               magic=0x39abcdef, len=20(0x14), unk=0,0,0,0,0,0,
               checksum=0x356
               DL = 0, D = 0, P = 1, - = 0, XY = 9984 x 6400
               L0 = 6400, MX = 0, MY = 0
               Order   = 0
               Options = 72  LRLTWO TPBON
               1 stripes, 0 layers, 1 planes
  19a:    RECTYPE 0xc  len=68(0x44)
               stripe=0, WB=1248(0x4e0), H=128(0x80), plane=3, comp=0x13,
               len=56(0x38)
               magic=0x39abcdef, len=20(0x14), unk=0,0,0,0,0,0,
               checksum=0x356
               DL = 0, D = 0, P = 1, - = 0, XY = 9984 x 6400
               L0 = 6400, MX = 0, MY = 0
               Order   = 0
               Options = 72  LRLTWO TPBON
               1 stripes, 0 layers, 1 planes
  1de:    RECTYPE 0xc  len=77488(0x12eb0)
               stripe=1, WB=1248(0x4e0), H=128(0x80), plane=1, comp=0x13,
               len=77476(0x12ea4)
               magic=0x39abcdef, len=77440(0x12e80), unk=2000000,0,0,0,0,0,
               checksum=0x9326d7
1308e:    RECTYPE 0xc  len=77680(0x12f70)
               stripe=1, WB=1248(0x4e0), H=128(0x80), plane=2, comp=0x13,
               len=77668(0x12f64)
               magic=0x39abcdef, len=77632(0x12f40), unk=2000000,0,0,0,0,0,
               checksum=0x9367e5
25ffe:    RECTYPE 0xc  len=69232(0x10e70)
               stripe=1, WB=1248(0x4e0), H=128(0x80), plane=3, comp=0x13,
               len=69220(0x10e64)
               magic=0x39abcdef, len=69184(0x10e40), unk=2000000,0,0,0,0,0,
               checksum=0x83938a
36e6e:    RECTYPE 0xc  len=45616(0xb230)
               stripe=1, WB=1248(0x4e0), H=128(0x80), plane=4, comp=0x13,
               len=45604(0xb224)
               magic=0x39abcdef, len=45568(0xb200), unk=2000000,0,0,0,0,0,
               checksum=0x58015d
4209e:    RECTYPE 0x1  len=3
               copies=1
420a1:    RECTYPE 0x9  len=0
420a2:    \033%-12345X

like… she ate and left no crumbs 💅 the whole PJL preamble, every RECTYPE, every checksum — all of it, right there.

🍓 FILES 🍓

  • /usr/bin/qpdldecode — that's her. that's the girl. 🫶

👑 SEE ALSO 👑

(the whole foo2qpdl cinematic universe, fr fr 🌈)

💜 AUTHOR 💜

Rick Richardson <rick.richardson@comcast.net> http://foo2qpdl.rkkda.com/

and that's the whole page bestie!! this lil masterpiece lives in the General Commands Manual, and it was giving main character energy the entire time. go decode something iconic ✨🎀🦋 no notes, periodt 💖

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